https://bookwyrm.social/ https://bookwyrm.social/ is a project to basically make a group of decentralised book-based social media sites, a little like Goodreads

https://bookwyrm.social/ https://bookwyrm.social/ is a project to basically make a group of decentralised book-based social media sites, a little like Goodreads (but on the Fediverse). Something being made available over ActivityPub isn't a copyright license to use it, but you could contact individual people and ask to be able to use their reviews, if that's something you wanted to do. (There's probably some degree of “permission by default” that you get, but as I'm not a copyright lawyer I tend to play it safe.)